*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f6f6f5;
  --surface: #ffffff;
  --surface2: #eeeeed;
  --border: #e0dfdd;
  --text: #18181a;
  --muted: #888785;
  --accent: #2d2d2d;
  --green: #4a7c59;
  --green-bg: #f2f7f3;
  --blue: #2d2d2d;
  --blue-bg: #2d2d2d0e;
  --blue-border: #2d2d2d45;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  font-size: 14px;
}

.app { max-width: 480px; margin: 0 auto; padding-bottom: 260px; }
.wide { max-width: 560px; margin: 0 auto; padding: 24px 20px; }

@media (min-width: 600px) {
  .app { max-width: 560px; }
  .header { width: 560px; }
  .footer { max-width: 560px; }
}

/* Header */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px;
  position: sticky; top: 0; z-index: 100;
}
.header h1 { font-size: 18px; font-weight: 700; color: var(--accent); }
.header .meta { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* Payment banner */
.payment-banner {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.payment-banner .label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; }
.payment-handle { font-size: 20px; font-weight: 800; color: var(--accent); }
.pm-badge {
  background: var(--blue-bg); border: 1px solid var(--blue-border);
  color: var(--blue); font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 9999px;
}
.pm-badge-link { color: inherit; text-decoration: none; }

/* Name picker */
.name-bar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 10px 20px; display: flex; align-items: center; gap: 10px; overflow-x: auto;
}
.name-bar .label { font-size: 12px; color: #888; white-space: nowrap; }
.name-chips { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-change-identity {
  background: none; border: none; color: var(--muted); font-size: 12px;
  cursor: pointer; padding: 0; margin-left: auto; text-decoration: underline;
}
.chip {
  padding: 8px 14px; border-radius: 9999px; font-size: 12px; font-weight: 600;
  cursor: pointer; border: 1.5px solid var(--border); color: var(--muted); background: transparent;
  white-space: nowrap; transition: all .15s; user-select: none; min-height: 36px;
  display: inline-flex; align-items: center;
}
.chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.chip.paid { background: var(--green-bg); border-color: var(--green); color: var(--green); }
.chip.paid::before { content: '✓ '; font-size: 10px; }
.chip.paid-unavailable { opacity: 0.5; cursor: default; background: var(--green-bg); border-color: var(--green); color: var(--green); }
.chip.paid-unavailable::before { content: '✓ '; font-size: 10px; }

/* Section label */
.section-label {
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted); padding: 14px 20px 6px;
}

/* Group header */
.group-header {
  font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase;
  letter-spacing: .06em; padding: 10px 20px 4px;
  background: var(--surface2); border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border); margin-top: 4px;
}

/* Item rows */
.item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 20px; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background .1s;
}
.item:hover:not(.claimed-other):not(.no-guest) { background: var(--surface); }
.item.no-guest { cursor: default; opacity: .6; }
.item.claimed-mine { background: var(--green-bg); border-left: 3px solid var(--green); padding-left: 17px; }
.item.claimed-mine .item-name { color: var(--green); }
.item.claimed-other { opacity: .45; cursor: default; }
.item.claimed-other .item-name { text-decoration: line-through; color: var(--muted); }
.item-check {
  width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 11px;
}
.item.claimed-mine .item-check { background: var(--green); border-color: var(--green); color: #fff; }
.item.claimed-other .item-check { background: var(--surface2); border-color: var(--surface2); color: var(--muted); }
.item-info { flex: 1; min-width: 0; }
.item-name { font-size: 13px; font-weight: 500; }
.item-claimer { font-size: 11px; color: var(--muted); margin-top: 1px; }
.item-price { font-size: 13px; font-weight: 600; color: var(--accent); white-space: nowrap; }
.item.claimed-other .item-price { color: var(--muted); }

/* Charges */
.charges-section { padding: 12px 20px; display: flex; flex-direction: column; gap: 5px; }
.charge-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }
.charge-row.total { color: var(--text); font-weight: 700; border-top: 1px solid var(--border); padding-top: 6px; margin-top: 2px; }

/* Sticky footer */
.footer {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px;
  background: var(--surface); border-top: 1px solid var(--border);
  padding: 12px 20px 20px;
}
.totals { display: flex; flex-direction: column; gap: 3px; margin-bottom: 10px; }
.total-row { display: flex; justify-content: space-between; font-size: 12px; color: #888; }
.total-row.grand { color: var(--text); font-weight: 700; font-size: 15px; margin-top: 4px; }
.total-row.grand .amount { color: var(--green); font-size: 18px; }

/* Buttons */
.btn {
  width: 100%; padding: 13px; border: none; border-radius: 10px;
  font-size: 15px; font-weight: 700; cursor: pointer; transition: opacity .15s;
}
.btn:disabled { opacity: .4; cursor: default; }
.btn-green { background: var(--green); color: #fff; }
.btn-outline {
  background: transparent; border: 1.5px solid var(--border);
  color: var(--text); padding: 8px; font-size: 13px;
  width: auto; border-radius: 6px;
}

/* Settlement overlay */
.settlement-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(246,246,245,.96); z-index: 999;
  align-items: center; justify-content: center;
  flex-direction: column; text-align: center; padding: 40px;
}
.settlement-overlay.visible { display: flex; }
.settlement-overlay h1 { font-size: 56px; margin-bottom: 12px; }
.settlement-overlay h2 { font-size: 28px; margin-bottom: 8px; }
.settlement-overlay p { font-size: 16px; color: var(--muted); }

/* Host monitor */
.share-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; margin-bottom: 20px;
  display: flex; gap: 20px; align-items: center;
}
.share-url { word-break: break-all; font-size: 13px; color: var(--accent); margin-bottom: 10px; }
.progress-bar { height: 4px; background: var(--border); border-radius: 2px; margin-bottom: 20px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--green); border-radius: 2px; transition: width .5s; }
.guest-status-list { display: flex; flex-direction: column; gap: 8px; }
.guest-status-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 16px;
}
.guest-status-row.paid { border-color: var(--green); }
.guest-name { flex: 1; font-weight: 600; }
.guest-owed { font-size: 13px; color: var(--accent); }
.guest-badge { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 9999px; }
.badge-pending { background: var(--surface2); color: var(--muted); }
.badge-paid { background: var(--green-bg); color: var(--green); border: 1px solid var(--green); }

/* Toast notification */
#toast {
  position: fixed; bottom: 100px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: #fff; padding: 10px 20px;
  border-radius: 9999px; font-size: 13px; font-weight: 600;
  opacity: 0; transition: opacity .2s; pointer-events: none; white-space: nowrap;
  z-index: 500;
}
#toast.visible { opacity: 1; }

/* Setup page */
.setup-card {
  background: var(--surface); border: 1px solid var(--border);
  margin: 0 12px 12px; border-radius: 10px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 12px;
}
.setup-row { display: flex; gap: 12px; }
.setup-row .setup-field { flex: 1; }
.setup-field { display: flex; flex-direction: column; gap: 4px; }
.setup-label { font-size: 11px; font-weight: 700; color: #666; text-transform: uppercase; letter-spacing: .06em; }
.setup-input {
  background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 14px; padding: 8px 10px; width: 100%;
}
.setup-input:focus { outline: none; border-color: var(--accent); }
.setup-textarea { resize: vertical; min-height: 80px; font-family: inherit; }
.upload-btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  background: var(--blue-bg); border: 1px solid var(--blue-border); color: var(--blue);
  padding: 10px 16px; border-radius: 8px; font-size: 13px; font-weight: 600;
  transition: opacity .15s;
}
.upload-btn:hover { opacity: .8; }
.parse-status { font-size: 12px; color: var(--muted); min-height: 16px; }
.parse-status.success { color: var(--green); }
.parse-status.error { color: #f87171; }
.parse-status.warning { color: #fbbf24; }
.item-empty { padding: 12px 20px; color: #555; font-size: 13px; }
.setup-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 20px; border-bottom: 1px solid var(--border);
}
.setup-item-name  { flex: 1; min-width: 0; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--text); font-size: 13px; padding: 4px 2px; }
.setup-item-qty   { width: 48px; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--text); font-size: 13px; padding: 4px 2px; text-align: center; }
.setup-item-price { width: 64px; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--accent); font-size: 13px; padding: 4px 2px; text-align: right; }
.setup-item-name:focus, .setup-item-qty:focus, .setup-item-price:focus { outline: none; border-bottom-color: var(--accent); }
.setup-item-x { color: #555; font-size: 12px; }
.btn-remove {
  background: none; border: none; color: #555; cursor: pointer;
  font-size: 14px; padding: 4px 6px; border-radius: 4px; transition: color .1s;
}
.btn-remove:hover { color: #f87171; }
.add-item-bar { padding: 8px 20px 16px; }
.create-btn-bar { padding: 20px 20px 40px; }
.upload-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.upload-btns .upload-btn { flex: 1; justify-content: center; }

/* Identity picker */
#identity-picker {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 20px;
}
.identity-prompt { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 14px; }
.identity-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.identity-chips .chip { font-size: 13px; padding: 10px 18px; }

/* Locked chip (name bar after identity confirmed) */
.chip.locked { opacity: 0.3; cursor: default; pointer-events: none; }

/* Active + paid chip: green fill */
.chip.active.paid { background: var(--green); color: #fff; border-color: var(--green); }
.chip.active.paid::before { content: '✓ '; font-size: 10px; }

/* Two-button footer */
.footer-actions { display: flex; flex-direction: column; gap: 8px; }
.btn-venmo {
  background: var(--blue-bg); border: 1.5px solid var(--blue-border);
  color: var(--blue); text-decoration: none; text-align: center; display: block;
}
.btn-venmo.btn-disabled { opacity: 0.4; pointer-events: none; }
.identity-confirm-bar { padding-top: 4px; }